NUCAPT Literature Database


1–1 of 1 record found matching your query (RSS):

Select All    Deselect All
 |   | 
  Record Links
Type Bunton, J.H.; Olson, J.D.; Lenz, D.R.; Kelly, T.F.
  Publication Advances in Pulsed-Laser Atom Probe: Instrument and Specimen Design for Optimum Performance Volume Journal Article
Pages 2007
  Abstract Microscopy and Microanalysis  
  Corporate Author  
Publisher 13  
Editor 06
  Summary Language 418-427 Series Editor pulsed-laser atom probe, PLAP, laser, instrument, specimen, sample preparation, LEAP microscopy  
Abbreviated Series Title The performance of the pulsed-laser atom probe can be limited by both instrument and specimen factors. The experiments described in this article were designed to identify these factors so as to provide direction for further instrument and specimen development. Good agreement between voltage-pulsed and laser-pulsed data is found when the effective pulse fraction is less than 0.2 for pulsed-laser mode. Under the conditions reported in this article, the thermal tails of the peaks in the mass spectra did not show any significant change when produced with either a 10-ps or a 120-fs pulsed-laser source. Mass resolving power generally improves as the laser spot size and laser wavelength are decreased and as the specimen tip radius, specimen taper angle, and thermal diffusivity of the specimen material are increased. However, it is shown that two of the materials used in this study, aluminum and stainless steel, depend on these factors differently. A one-dimensional heat flow model is explored to explain these differences. The model correctly predicts the behavior of the aluminum samples, but breaks down for the stainless steel samples when the tip radius is large. A more accurate three-dimensional model is needed to overcome these discrepancies.
  Series Issue ISSN  
  Expedition Notes  
Call Number  
Contribution Id  
Serial URL ISBN  
no NU @ karnesky @ 10100
Permanent link to this record
Select All    Deselect All
 |   | 

Personal tools
Seidman Group
Atom-Probe Tomography
Quick Search: